Display device

Abstract

A display device in an embodiment according to the present invention includes a display region above a first substrate, the display region includes, a plurality of a pixels, a transistor arranged to each of the plurality of the pixels, a light emitting element arranged to each of plurality of the pixels, an interlayer insulating layer above the transistor, and a planarization film above the inter layer insulating layer, a terminal region above the first substrate in a periphery region of the display region, the terminal region including, a plurality of terminals, each of which includes a first conductive layer above the interlayer insulating layer, the planarization film is arranged in a side part of the first conductive layer, and an inorganic insulating layer covering an upper surface of planarization film and an end part of the first conductive layer.

What is claimed is: 
     
       1. A display device, comprising:
 a display region above a first substrate, wherein the display region includes:
 a plurality of a pixels; 
 a transistor arranged in each of the plurality of the pixels; 
 a light emitting element arranged in each of the plurality of the pixels; 
 an interlayer insulating layer above the transistor; and 
 a planarization film made of an organic insulation material above the interlayer insulating layer, and 
 
 a terminal region above the first substrate in a periphery region of the display region,
 wherein the terminal region includes: 
 a plurality of terminals, each of which includes a first conductive layer and a transparent conductive layer, above the interlayer insulating layer, wherein the transparent conductive layer is provided directly above the first conductive layer and is in contact with the first conductive layer; 
 the planarization film arranged in a side part of the first conductive layer; 
 an inorganic insulating layer covering an upper surface of the planarization film and an end part of the first conductive layer; 
 a first conductive particle being directly above one of the plurality of terminals, wherein a bottom portion of the first conductive particle is in contact with the one of the plurality of terminals; 
 a second conductive particle directly above the inorganic insulating layer and the planarization film, wherein a bottom portion of the second conductive particle is in contact with the inorganic insulating layer; 
 a terminal electrode directly above the first conductive particle, wherein a bottom portion of the terminal electrode is in contact with the first conductive particle; and 
 a thermosetting resin arranged between the one of the plurality of terminals and the first conductive particle, between the one of the plurality of terminals and the second conductive particle, between the one of the plurality of terminals and the terminal electrode, and between the first conductive particle and the second conductive particle, wherein the thermosetting resin is in contact with a whole upper surface of the second conductive particle, 
 wherein 
 the transparent conductive layer covers an upper surface of the first conductive layer and an upper surface of a peripheral portion of the inorganic insulating layer, 
 a central portion of the inorganic insulating layer is exposed from the transparent conductive layer, the bottom portion of the second conductive particle is in contact with the central portion of the inorganic insulating layer. 
 
 
     
     
       2. The display device according to  claim 1 , wherein the transparent conductive layer s not in contact with the end part of the first conductive layer, and a film thickness of the planarization film arranged in the terminal region is thinner than a film thickness of the planarization film arranged in the pixel. 
     
     
       3. The display device according to  claim 1 , wherein the plurality of terminals is arranged in a zig zag manner along one side of the first substrate. 
     
     
       4. The display device according to  claim 1 , further comprising a source electrode or a drain electrode above the interlayer insulating layer,
 wherein 
 the interlayer insulating layer including an opening, the opening is arranged above the transistor, 
 the source electrode or the drain electrode connected with the transistor via the opening, and 
 the first conductive layer includes the same material as the source electrode or the drain electrode. 
 
     
     
       5. The display device according to  claim 1 , wherein the light emitting element includes a pixel electrode, a light emitting layer and a counter electrode, and the pixel electrode includes the same material as the transparent conductive layer. 
     
     
       6. The display device according to  claim 1 , wherein the upper surface of the planarization film is lower than the upper surface of the first conductive layer. 
     
     
       7. A display device, comprising:
 a display region above a first substrate, wherein the display region includes:
 a plurality of a pixels; 
 a transistor arranged in each of the plurality of the pixels; 
 a light emitting element arranged in each of the plurality of the pixels; 
 an interlayer insulating layer above the transistor; and 
 a planarization film made of an organic insulation material above the interlayer insulating layer, and 
 a terminal region above the first substrate in a periphery region of the display region, 
 wherein the terminal region includes:
 a plurality of terminals, each of which includes a first conductive layer and a transparent conductive layer, above the interlayer insulating layer, wherein the transparent conductive layer is provided directly above the first conductive layer and is in contact with the first conductive layer; 
 the planarization film arranged in a side part of the first conductive layer; 
 an inorganic insulating layer covering an upper surface of the planarization film; 
 a first conductive particle being directly above one of the plurality of terminals, wherein a bottom portion of the first conductive particle is in contact with the one of the plurality of terminals; 
 a second conductive particle directly above the inorganic insulating layer and the planarization film, wherein a bottom portion of the second conductive particle is in contact with the inorganic insulating layer; 
 a terminal electrode directly above the first conductive particle, wherein a bottom portion of the terminal electrode is in contact with the first conductive particle; and 
 a thermosetting resin arranged between the one of the plurality of terminals and the first conductive particle, between the one of the plurality of terminals and the second conductive particle, between the one of the plurality of terminals and the terminal electrode, and between the first conductive particle and the second conductive particle, wherein the thermosetting resin is in contact with a whole upper surface of the second conductive particle, 
 wherein 
 an end portion of the inorganic insulating layer is sandwiched between an end portion of the first conductive layer and an end portion of the transparent conductive layer. 
 
 
 
     
     
       8. The display device according to  claim 7 , wherein the transparent conductive layer is not in contact with the end part of the first conductive layer, and a film thickness of the planarization film arranged in the terminal region is thinner than a film thickness of the planarization film arranged in the pixel. 
     
     
       9. The display device according to  claim 7 , wherein the plurality of terminals is arranged in a zig zag manner along one side of the first substrate. 
     
     
       10. The display device according to  claim 7 , further comprising a source electrode or a drain electrode above the interlayer insulating layer,
 wherein 
 the interlayer insulating layer including an opening, the opening is arranged above the transistor, 
 the source electrode or the drain electrode connected with the transistor via the opening, and 
 the first conductive layer includes the same material as the source electrode or the drain electrode. 
 
     
     
       11. The display device according to  claim 7 , wherein the light emitting element includes a pixel electrode, a light emitting layer and a counter electrode, and the pixel electrode includes the same material as the transparent conductive layer. 
     
     
       12. The display device according to  claim 7 , wherein the upper surface of the planarization film is lower than the upper surface of the first conductive layer.